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device issues

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kbt.przemek
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device issues

Hi guys,

Ive just bought eee pc 1008ha and I straight away looked for some portable apps and here is my major issue:

Will SD card (i dont want usb stick) will be faster than my 2,5" 250gb hdd?
and if it were, is it worth buying more expensive 20/20 write/read card? than for example decent Transcend 12/18 write/read card? and how is it all in consideration of my eeepc card reader?

I'll appreciate every help Smile

BuddhaChu
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It depends on the interface

It depends on the interface to the hard drive (SATA vs IDE) and the performance level of the SD card (it's "class" as in Class 4, Class 6, etc)

These are hardware speed limitations you need to consider so you can compare apples to apples. For example, if you have a SATA drive it's going to be WAY faster than a Class 4 SD card.

Even if you get a Class 45 SD card, it'll be slower than the SATA interface and probably the SATA drive in use (that speed is device-dependent).

http://en.wikipedia.org/wiki/Secure_Digital#Speeds
http://en.wikipedia.org/wiki/Serial_ATA#Comparisons_with_other_interfaces

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kbt.przemek
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Last seen: 15 years 2 months ago
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i got hdd on SATA interface,

i got hdd on SATA interface, so it means i should ran portabble apps just from my disk? even if i would buy e.g. sandisk extreme III 2gb with 20mb/s read and write?

J Neutron
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The need for speed

So, you are trying to compare an external device that runs at 20mb/s against an internal one that runs 3GIG/s ????

neutron1132 (at) usa (dot) com

Vandrvekn
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Interface

It also depends on the interface of the SD card reader. Most laptops use an internal USB 2.0 interface for the card reader, which limits it to about 32 MB/s. Most wont even go that quickly. I found out that I get about 16 MB/s maximum with the internal card reader in my laptop, but about 20 MB/s using a USB card reader. In either case, write speeds were much slower. A modern hard drive gets much faster speeds.

kbt.przemek
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So whats the point to run all

So whats the point to run all those portable apps from external drives like pendrives or usb disks and not from internal drives? ;o

J Neutron
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Portable?

These apps are portable, as in you can take them with you from computer to computer, maybe at your friend's house, maybe at the library, maybe at school, maybe at the some hotel, maybe at a different branch of your office, maybe at some cafe, etc, etc.

Some of us DO run the apps on our own computers, do so mainly because the apps stick to themselves and don't slog the computer with trash and bloat the registry.

Those of us who do run the apps on our own computers do it mainly from the fastest device available.... internal hard drive.

neutron1132 (at) usa (dot) com

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